What were you trying to do that didn't work?

I want to change ip address in kernel mode, but it is appended to the current ip state, not changed.

Please provide the package NVR for which bug is seen:

nmstate-2.2.33-1.el9.x86_64

How reproducible:

100%

Steps to reproduce

wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/local/bin/yq && chmod +x /usr/local/bin/yq

systemctl stop NetworkManager

ip link add eth1 type veth peer eth1_p
ip link set eth1 up
ip link set eht1_p up

cat << EOF > kernel.yaml
interfaces: 
  - name: eth1
    type: ethernet
    state: up
    ipv4:
      address: 
      - ip: 192.0.2.1
        prefix-length: 24
      dhcp: false
      enabled: true
    ipv6:
      address: 
      - ip: 2001:db8:1::1
        prefix-length: 64
      dhcp: false
      enabled: true
      autoconf: false
EOF

nmstatectl apply kernel.yaml -k
yq '.interfaces.0.ipv4.address.0.ip = "192.0.2.2"' kernel.yaml > kernel2.yaml
yq -i '.interfaces.0.ipv6.address.0.ip = "2001:db8:1::2"' kernel2.yaml

nmstatectl apply kernel.yaml -k

ip addr show eth1
nmstatectl show eth1 -k

Expected results

Each ip stack has only one address(except ipv6 link local address):

ipv4 192.0.2.2

ipv6 2001:db8:1::2 

Actual results

4: eth1@eth1_p: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 02:b1:c6:d9:5b:6a brd ff:ff:ff:ff:ff:ff
    inet 192.0.2.1/24 brd 192.0.2.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet 192.0.2.2/24 brd 192.0.2.255 scope global secondary eth1
       valid_lft forever preferred_lft forever
    inet6 2001:db8:1::2/64 scope global 
       valid_lft forever preferred_lft forever
    inet6 2001:db8:1::1/64 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::b1:c6ff:fed9:5b6a/64 scope link 
       valid_lft forever preferred_lft forever